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Extended sleeve ( See Model 2702)
904 - Double Deflection Adjustable Aluminum Blade Grille For a 48" x 20" Duct Opening (front blades parallel to shortest dimension)
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Product sizes available to fit spiral pipe diameters 8” – 48
SUBMITTAL 2720 Series Submittal
Backdraft Vertical Mount 3550-24X26 Smoke-Fire Damper Extended sleeve ( See Modelh3. Standard Features * 3550 Vertical mount * 3560 Horizontal mount air up * 3570 Horizontal mount air down * 3580 Round sizes available 5" to 24" * All non motorized backdraft dampers * Dampers are opened by air pressure differential and closed by gravity * 16 gauge channel frame with 26 gauge galvanized blades * Out of airstream linkage * Blades are vee stiffened 26 gauge for strength and stability * Square steel pivot pins * Nylon bushings * Single
US$ 23.00
US$ 27.95
US$ 220.48
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